Installed a 3 in 1 on a maytag refrigarator? Will it burn the compressor up?

Good day,
The problem with that device is it's overload. It's too generic, and might hold power to the compressor far to long, when it is forced to trip.
Solution.
One of the wires from the 3 in 1 going to the compressor is black. That is called common.
You should reinstall the factory overload, and connect one side of it to the common terminal of the compressor.
The other connection on the overload, should be connected to the black wire you removed from the compressor.
The original overload was designed to trip out and shut power to the compressor based on correct amperage draw, and compressor body temperature.
Once done, you should have a ptc relay with a start capacitor, and the correct safety, and it should work as well as any factory setup.

Thank you for using FixYa

Hi, Are you saying you wired in a dual run capacitor on your compressor to start it? Or, a hard start relay capacitor combination? A dual cap has 3 terminals on it. Marked Herm, Fan, and C for common. If the voltage is not correct, or the correct Uf's, yes it could burn the compressor out. If you are having a problem with a tight compressor, you need to purchase a hard start capacitor of the right voltage which is 370V by the right H.P.1/4 to 1horse what ever your compressor is.They are made to fit several sizes of compressors. Get the information from the data plate on the compressor and pick up the right hard start for it. This is important if you want the compressor to last.
Sincerely,
Shastalaker7